Department of Mathematics, University of Turku, FIN-20014 Turku, Finland

e-mail: kalle.parvinen@utu.fi

ABSTRACT

Question: Can the Allee effect promote evolutionary suicide by dispersal evolution in a discrete-time metapopulation model?

Mathematical methods: Adaptive dynamics.

Features of model: Metapopulation consisting of infinitely many patches. Local dynamics, dispersal, and catastrophe events defined in discrete time.

Results: Fitness-based calculations show that evolutionary suicide can happen in the model. Evolutionary simulations support the result. After evolutionary branching, dimorphic evolutionary suicide does not occur.

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